NEW YORK — Geraldo Rivera dates the low point in modern New York City history to Aug. 9, 1977. That was the day before police arrested David Berkowitz, the serial killer who called himself “Son of Sam.” He terrorized the city for a year with late-night shootings, killing six and wounding seven, and primarily targeted young women sitting in cars. The time is vividly brought to life in the Smithsonian Channel documentary, “The Lost Tapes: Son of Sam,” premiering Sunday at 9 p.m. The Investigation Discovery network is airing its own retrospective on the crime spree that airs next Saturday, Aug. 5.

Billionaire activist investor Daniel Loeb’s Third Point LLC hedge fund has taken a $3.5 billion stake in Nestlé SA, piling pressure on the world’s largest packaged foods company to find ways to accelerate growth.